Chemical Engineering Thermodynamics
A Carnot cycle consists of the following steps :

Two isothermals and two isochorics
Two isothermals and two isentropics
Two isochorics and two isobarics
Two isobarics and two isothermals

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Chemical Engineering Thermodynamics
The necessary condition for phase equilibrium in a multiphase system of N components is that the

Chemical potentials of a given component should be equal in all phases
None of these
Chemical potentials of all components should be same in a particular phase
Sum of the chemical potentials of any given component in all the phases should be the same

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